Thermostat, WiFi, Z-Wave, or Zigbee, that does not require manufacturer's cloud server

The Residio API (same API as Honeywell Home just rebranded) is still there and works with my Honeywell thermostat. There is even a preliminary add-on for it on the marketplace: Honeywell home thermostat Binding

My understanding was Honeywell was consolidating APIs, not shutting them down with no replacement.